Internal combustion engine



E. R. JACOBY INTERNAL coMBUsTIoN ENGINE Filed Nov. 16 1927 I. I -.JI 221:11 |I I T. .I|

INVENTOR. .s/,05 f@ .qcoy

ATTORNEY.

May 23, 1933.

Patented May 23, 193.3

UNITED STATES Enos "n.IAcoBm or nE'rnoIrrI'IonIeAN, nssIeNoaro oN'rIN-EN'ITAL `irrororts coRronA'rIoN, or DETROIT, MICHIGAN, A coIi-PonA'rIon or VIRGINIA INTERNAL coMBUs'IION Appiieaeon med November 1e, 1927; serial 1ro; 233,535.1-

Y This invention relates to internal combustion enginesV and refers more particularlyto those portions of the engine which are associated with the lubricating system.

5 One object of my vinvention resides in an engine construction eliminating thecustomary lubrication or oil pipes in the supply line from the oilpump to the. oil header. My invention eliminates the .heretofore difficul- Vv ties resulting from the use of oil conducting pipes-which frequently'become loose, resultinglin oil leakage and dirt accumulations.

My invention further provides-a ,construction for conducting the oil as desired, which constructionis more simple and capable of manufacture at less cost than prior devices for the same general purpose.

Another feature of my invention resides in utilizing one or more of the crankshaft 920 bearing caps as an oil conductin means. A

still' further feature provides yor Conveniently mounting the oil pump on one of the crankshaft bearing caps, with lregistering oil'conduits from the pump to the oilheader '25 formed by drilling the crankshaftI bearing cap andthe main cylinder casting.

Further features of my invention reside in the novel `combination and arrangements `of parts, more yr articularlyi` hereinafter de- 3Olscribed and claimed. i i I Referring to the accompanying drawing which illustrates one embodiment of mylinvention, the single figure represents a sectional elevation view of an engine showing my improved oilconducting means.

Reference character A. represents the cylinder block ormain cylinder casting which is customarily formed with a pluralityo'f cylinders 10 having their axes disposed in a plane extending longitudinally of the cylin-l 17 cooperating therewith and with the crankshaft bearing portion 15 fasteners 18servingto removably :holdI thebearingvcapin position. Positionedbeneath the bearing cap 17 and secured thereto by fasteners 19 is an oil 5 5 pump 20, the pump :being .located 'in the crankcase pan l21 vwhere it canifunction -to pump crankcase oil usually stored in the'pan., The oil pump may be.I actuated-by .thev driving shaft 22 extending through` and piloting in *60V the bearing cap .by reason'of the pump hous-` ing-extension 22a.lThe shaft-22 iszdriven directly, or more commonly indirectlyyfrom the engine crankshaft.`

` Thezcylinder block A and the downwardly 65 l extendingwcrankcase. portion constitute` a mainl engine'frame, theseparts being either formed separately or as one casting as illustrated..` in' :j

The cylinder block Ais providedwith the oil header 23.extendinglongitudinally of the engine and adapted `todistribute oil under pressure to .the various engine parts such asV the crankshaft bearingsfl, thewebs 16-forthis purpose beingldrilled to formoilconl duitsQl. M

The pump `housing is formedJ vwith ,.-a drilled pressure dischargeconduit 25. communicatingwith .the drilled conduit 26 inthe bearing/cap 17. I- The conduit 26 in turn com- 80 municates with the,- conduit '27 .formedin the cylinder block, the header 231receivingthe oil under pressure from: theconduit27.

In operation the vpump 20forces oil undery pressure from the-pan Qlzthrough the com-1 85 municating conduits 25, Q6, and 27 to the header 23. i From the header the oil is dis-v tributed to thefvarious bearings and engine. parts to be lubricated. f i

It will beanoted that my'invention eliminates the necessity'foroil pipeslusually con-y nected -in the supply,l linefbetweenxthe oilV pump and distributing header. Furthermore- I have provided :a `compact and :novel la1"- rangement for securely vmounting-they oil '95? pump in position within thecrank case pan.

What I claimasmy `inventionis:V

l. The combination vwithan engine having a main frame, crankshaft, withy associated piston and, connecting frod,` said mainframe being formed with a crankshaft bearing, a bearing cap cooperating With the crankshaft bearing, an oil pump, the main frame being formed with an oil delivery conduit, and the bearing cap being formed with an oil conduit in registration With the pump outlet for receivingy oil under pressure from the pump and Vdelivering the oil to said main frame oil conduit.

A2. Thecombin'ation with ali-engine having' a main frame, crankshaft, With associated piston and connecting rod, a bearing cap for a bearing portion of the crankshaft and secured to the main frame, an oil pan, a pump device supported beneath and by the bearing cap, an oil-header, the main frame, bearing cap,v and pump device being formed with communicating oil conduits in direct regis-V tration With eachother for supplying oil under pressure from the pump to the header. 3. The combination With an engine having a. ymain frame, crankshaft, With associated piston and connecting `rod, a bearing cap formed with an internal -oil conducting passage, "a pump delivering oil to said passage, andan loil header receiving oil therefrom.

.4. The combination with an engine having amfain frame, crankshaft, With associated piston and connecting rod, a bearing cap for a bearing portion of the crankshaft, an oil pump -secured to the bearing cap,and 'a pump drive shaft :extending through said bearing cap. e.

5. The combination with an engine having Y. a main frame, crankshaft, with associated piston and connecting rod, a bearing cap forl a bearing portion of, the crankshaft, an oil pump secured to the bearing cap, and having a portion thereof extending through the .bearing cap, and a pump drive shaft associated with said extension.

6. An engine comprising in combination With a main fra-me with associated cylinder, pistom'cranrkshaft, fand connecting rod betweent'he piston land crankshaft, ak bearing and cooperating'bearing-cap for the crankshaft, 'saidfbear-ing cap having an internal oil conducting lconduit 'extending from the under face yof thebearing cap to thc upper face/'thereof' to 'one `side of the vcrankshaft bearing, andan v'oil ,pump Vstructure secured' to the said bearing cap under face `and provided with 'a discharge conduit aligned with said bearing cap conduit. i

Y "5.' lin/engine Acomprising in 'combination Wit'ha mainframe With associated cylinder, piston, crankshaft, and vconnecting rod between the piston'and crankshaft, a lbearing and cooperatingV bearing cap for the crankshaft, said 'bearing cap havinganinternal oil conducting conduitextending from the under face of the 'bear-,ing cap to the upper face thereof'tofone Vside of the crankshaft bearing, andan oil pump ystructure secured to the lsaid `bearing cap under face and protween the piston and crankshaft, a'bearing y and cooperating bearing cap for the crankshaft, anoil pump structure, means securing vsaidvpump structure to said bearing cap, said bearing cap having :an opening extending `4vertically therethrough, said pump structure having a pilot extending into said bearing cap opening, and avpump drive shaft in said pilot. i

9i. An engine comprising in combination o with a main frame with associated cylinder, piston, crankshaft, and rconnecting rod between the piston and crankshaft, a bearing and cooperating bearing cap fo-r the crankshaft, an oil pump structure, means securing said pump 'structure to Ysaid bearing cap, said bearing cap having an 'opening extending vertically therethrough, lsaid pump structure having' a piiot extending into said bea-ring cap opening, and a pump drive shaft in saidr pilot, said bearing cap having an oil conduit therethrough receiving oil from said pump.

10. An engine comprising in combination with a main frame With associatedcylinden a pist-on, al crankshaft and a rconnecting rod between the pist-'on and crankshaft, a bearn ing and cooperating bearing cap for the crankshaft, said main frame and bearing cap having cooperating Ioil passages forming a substantially continuous oil conduit, and anV ing and cooperating bearing cai-p for the crankshaft, said main frame and bearing cap having cooperating foil passages forming a substantially Vcontinuous oil conduit, lsaid main frame provided Withfliateral oil pas-A sages connecting t'h'e crankshaft bearing With.k

said oil conduit, and an yoil pump `struc-ture secured zto the underside of said bearing cap andprovided with an oilv delivery conduitv 1n direct registration With thebearing cap` oirl passage.

Iii-Witness whereof, I hereunto subscribe my name this 8th day lof November, A.V D.

nues R. .ni-coni?. 

